Would it be better to have a Lv270 tri-moonstone or Lv330 tri-diamond? Next time free Premium comes around (or maybe I'll buy it), it might be worth it to do the premium training trick to get a Lv270 tri-moonstone. I bet the chance of that is 5% or so lol.

Edit: Actually, I looked at the CSC guide here and it looks like moonstones are only 0/+10/+20 for the level cap, so the most should be Lv210, not Lv270.

Although I know that you are right about Lv210 being the highest possible for tri-moonstones, I gonna be stubborn go stick to the legend...

Anyway, I think tri-moonstone is hard to use this method because not only the level it adds to is important, the stats it adds to is also important. (Where as tri-diamonds may deduct stats, but recovered mainly by the level difference...)
[End of report]

So, there I was, taking advantage of the free premium time and using an hour of it to kick a 2-diamond build through premium training. After some tries that came up with only +60 levels I gladly settled for a +90 when it came.
But now it seems that I cannot restore the shinki. The option isn't there. She's clearly marked as having maxed, I did some official battles to bring HP, SP and other stats to 100. But the button "CSCリストア" that was available before (and still is for my other max shinki) has disappeared.
Is this something Konami did to prevent level cap experiments? Or am I missing something? As I said, all stats on 100, I did OB and a mission, logged out and in again ... Any help on this matter would be highly appreciated, else the poor lady is in for another reset (just 240 dodge doesn't cut it).

EDIT: Okay, seems I found the answer. If I understood correctly, one also needs to complete 100 official battles before a restore is possible. Panic postponed.
I leave the post for information purposes, though I don't think it's of much relevance considering the overall situation ...